<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<button onclick="test()">点击</button>
		<script type="text/javascript">
			function a(){
				console.log(1)
				if(true){
					b();
					return false;
				}
			}
			
			function b(){
				console.log(2)
			}
			
			function test(){
				if(true){
					a();
					return false;
				}
			}
		</script>
	</body>
</html>
